Tom D. Lookabaugh
Computer Science Department
Interdisciplinary Telecommunications Program
University of Colorado at Boulder
ECOT 533
Campus Box 530
University of Colorado
Boulder, CO 80309
(303) 492-0429
tom.lookabaugh@colorado.edu
http://spot.colorado.edu/~lookabau
EDUCATION
Stanford University , Stanford, CA
Ñ
1988
Ph.D. in Electrical Engineering
Dissertation: "Variable rate and adaptive frequency domain vector quantization of
speech"
Stanford University , Stanford, CA
Ñ
1987
M.S. in Statistics
Stanford University , Stanford, CA
Ñ
1986
M.S. in Engineering Management
Stanford University , Stanford, CA
Ñ
1984
M.S. in Electrical Engineering
Colorado School of Mines , Golden, CO
Ñ
1983
B.S. with High Scholastic Honors in Engineering Physics
Minor: Metallurgy
AWARDS
• IEEE 1992 Signal Processing Society Paper Award
• National Science Foundation Fellowship, 1983 - 1986
• ARCO Full Tuition Scholarship, 1979 - 1983
• National Merit Scholarship, 1979
• Honors Program in Public Affairs for Engineers, 1980 - 1983
ACADEMIC EXPERIENCE
2003-
Assistant Professor
University of Colorado, Boulder, CO
Computer Science Department
2005-
Associate Faculty Director
2003-2005 Faculty Director
University of Colorado, Boulder, CO
Interdisciplinary Telecommunications Program
2001-2003 Assistant Professor
University of Colorado, Boulder, CO
Interdisciplinary Telecommunications Department
1988-1992 Adjunct Faculty Member
Santa Clara University, Santa Clara, CA
Taught courses in digital image processing and in compression.
1988-1992 Short Course Instructor, UCLA Extension
University of California, Los Angeles, CA
Instructor in short courses on and off campus on multimedia compression
algorithms and standards.
INDUSTRIAL EXPERIENCE
2001-
Consultant
Lookabaugh Cadwell, LLC, Boulder, CO
Serve as a strategic advisor to technology companies, board
memberships, intellectual property advice, expert witness, and other
assignments.
2000-2001 Sr. VP and General Manager, Convergent Systems Division
Consultant to the CEO
Acting VP, Global Service and Support
Harmonic, Inc., Sunnyvale, CA
Served in multiple roles to facilitate the integration of the DiviCom
business into Harmonic and the evolution of Harmonic to a two division
company.
1993-2000 President
Sr. VP and General Manager
VP, Marketing and Acting VP, Sales
VP, Engineering
VP, Research and Business Development
DiviCom, Inc., Milpitas, CA
Co-founded DiviCom in 1993, a manufacturer of digital video processing
equipment for satellite, cable, telephone companies, and broadcasters.
Held most of the major functional executive roles at critical periods,
including Engineering through introduction of the first product and
Marketing and Sales during expansion from the first market segment to
multiple market segments and international sales. Became general
manager of the business as a division after its acquisition by C-Cube
Microsystems and led the division for a three year period in which it
created over $1.5B of shareholder value: the business was acquired for
$130M by C-Cube in 1997 and was sold to Harmonic for $1.7B in 2000,
at which point it had over 450 employees, $170M profitable annual
revenue, and sales in 80 countries.
1988-1993 Executive Director of Research and New Business Technology
Senior Staff Scientist
Staff Scientist
Compression Labs, Inc., San Jose, CA
Started as a researcher focusing on algorithm development for video
compression in video conferencing, video telephony, digital video
entertainment, and high definition television (HDTV). Managed most of
the research staff (4 PhD's and other staff) and became involved in
business development and engineering project management.
PUBLICATIONS AND PAPERS
Books (Chapter Author)
T. Lookabaugh and D. Sicker, "Security and Lock-In," in Camp, L. Jean and Lewis,
Stephen, eds., Economics of Information Security , Springer, 2004.
J. D. Gibson, T. Berger, T. Lookabaugh, D. Lindbergh, and R. L. Baker, Digital
Compression for Multimedia: Principles and Standards , San Francisco: Morgan
Kaufmann, 1998.
J. D. Gibson, ed., Multimedia Communications: Directions and Innovations , San Diego:
Academic Press, 2000.
Journal Papers
D. C. Sicker and T. Lookabaugh, "VoIP Security: Not an Afterthought, " ACM Queue
Magazine , September 2004.
T. Lookabaugh and D. C. Sicker, "Selective Encryption for Consumer Applications,"
IEEE Communications Magazine , v. 42, n. 5, May 2004, pp. 124-129.
T. Lookabaugh and M. G. Perkins, "Applications of the Princen-Bradley filter bank to
speech and image compression," IEEE Transactions on Acoustics, Speech, and
Signal Processing , vol. 38, no. 11, November 1990, pp. 1914-1926.
M. Longo, T. Lookabaugh, and R. M. Gray, "Quantization for decentralized hypothesis
testing under communication constraints," IEEE Transactions on Information
Theory , vol. 36, no. 2, March 1990, pp. 241-255.
T. Lookabaugh, E. Riskin, P. A. Chou, and R. M. Gray, "Variable rate vector quantization
for speech, image, and video compression," IEEE Transactions on
Communications , vol. 41, no. 1, January 1993, pp. 186-199.
E. Riskin, T. Lookabaugh, P. A. Chou, and R. M. Gray, "Variable rate vector quantization
for medical image compression," IEEE Transactions on Medical Imaging , vol. 9,
no. 3, September 1990, pp. 290-298.
T. Lookabaugh and R. M. Gray, "High resolution quantization and the vector quantizer
advantage," IEEE Transactions on Information Theory , vol. 35, no. 5, September
1989, pp. 1020-1033.
P. A. Chou, T. Lookabaugh, and R. M. Gray, "Entropy-constrained vector quantization,"
IEEE Transactions on Acoustics, Speech, and Signal Processing , vol. 37, no. 1,
January 1989, pp. 31-42.
P. A. Chou, T. Lookabaugh, and R. M. Gray, "Optimal pruning with applications to tree-
structured source coding and modeling," IEEE Transactions on Information
Theory , vol. 35, no. 2, March 1989, pp. 299-315.
Dissertation
T. Lookabaugh, "Variable rate and adaptive frequency domain vector quantization of
speech," Stanford University, Stanford CA, June, 1989.
Peer Reviewed Conference Papers
D. C. Sicker, T. Lookabaugh, J. Santos, and F. Barnes, "Assessing the effectiveness of
distance networking laboratory experiences," IEEE Frontiers in Education
Conference, Indianapolis, IN, Oct 19-22, 2005.
T. Lookabaugh and D. C. Sicker, "Self-Regulation of E911 for VoIP: Lessons for the
Cable Industry from Environmental Voluntary Agreements," 2005 Magness Institute
Academic Seminar , National Cable Television Association Show, San
Francisco, California, April 2, 2005.
T. Lookabaugh, "Selective Encryption, Information Theory, and Compression," Asilomar
Conference on Signals, Systems, and Computers , Monterey, CA, 7-10 November,
2004.
J. D. Gibson, A. Servetti, H. Dong, A. Gersho, T. Lookabaugh, J. C. De Martin,
"Selective Encryption and Scalable Speech Coding for Voice Communications over
Multi-Hop Wireless Links," to appear in IEEE 2004 MILCOM , Monterery, CA, Oct 31
- Nov. 3, 2004.
T. Lookabaugh and D. C. Sicker, "Information Technology Mediated Education -
Revolution not Evolution," 34th ASEE/IEEE Frontiers in Education Conference ,
Savannah, GA, October 20-23, 2004.
D. Sicker and T. Lookabaugh, "A Model for Emergency Service of VoIP Through
Certification and Labeling," Telecommunications Policy Research Conference 2004 ,
George Mason University, Oct. 1-3, 2004.
F. S. Barnes, E. F. Fuchs, J. Tietjen, J. Silverstein, H-Y Ko, T. Lookabaugh, T. Brown, D.
C. Sicker, "Integrated Utilities Engineering-Management MS Program," 2004 IEEE
Power Engineering Society General Meeting , Denver, CO, 6-10 June, 2004.
T. Lookabaugh and D. C. Sicker, "Topics in Cable and Security: Selective Encryption
and Economic Lock-In." National Cable Television Association Academic Seminar ,
New Orleans, LA, May 1-2, 2004.
T. Lookabaugh, "Systemizing Selective Encryption," SWIM 2004, Lectures by Masters in
Speech Processing , Maui, HI, January 12-14, 2004.
T. Lookabaugh and D. C. Sicker, "Selective Encryption for Consumer Applications,"
IEEE Consumer Communications and Networking Conference , Las Vegas, NV,
January 5-8, 2004.
T. Lookabaugh, D.C. Sicker, D.M. Keaton, Y.G. Wang, and I. Vedula, "Security Analysis
of Selectively Encrypted MPEG-2 Streams," in Multimedia Systems and Applications
VI , Proceedings of the SPIE, vol. 5241, Orlando, FL, 8-9 September 2003.
T. Lookabaugh and D. Sicker, "Security and Lock-in," presented at Economics and
Information Security Workshop , University of Maryland, May 29-30, 2003
T. Lookabaugh, S. Savage, and D. Sicker, "Broadband Demand and Wireless,"
International Symposium on Advanced Radio Technologies , 4-7 March, 2003,
Boulder, Colorado USA.
A. Eftekhari, et al. "Feasibility of a Fixed Wireless Access Business," International
Symposium on Advanced Radio Technologies , 4-7 March, 2003, Boulder,
Colorado USA.
D. Hatfield et al., "Broadband Internet Access, Awareness, and Use: Analysis of United
States Household Data," Pacific Telecommunications Council Conference 2003 ,
Honolulu, Hawaii, January 19-23, 2003
T. Lookabaugh, "Innovation by Acquisition," IEEE International Conference on
Engineering Management , Cambridge, UK, August 2002.
P. A. Chou and T. Lookabaugh, "Variable-to-variable length block coding," IEEE
International Symposium on Information Theory, Budapest, Hungary, June 1991.
P. A. Chou and T. Lookabaugh, "Conditional entropy-constrained vector quantization of
linear predictive coefficients," Proceedings ICASSP 90 , Albuquerque, NM, 1990,
pp. 197-201.
T. Lookabaugh, D. Klenke, B. Chitprasert, J. A. Zingman, and W.-H. Chen, "A method
for evaluating the efficiency of block classification in multiple mode video
compression," Proceedings SPIE Conference on Visual Communications and
Image Processing IV , Philadelphia, PA, November, 1989, pp. 222-232.
M. G. Perkins and T. Lookabaugh, "Joint source/channel DCT image coding for the
Gaussian channel," Proceedings EUSIPCO 90 , Barcelona, Spain, 1990.
T. Lookabaugh, M. G. Perkins, and C. L. Cadwell, "Analysis/synthesis systems in the
presence of quantization, " Proceedings ICASSP '89 , Glasgow, Scotland, May
1989.
M. G. Perkins and T. Lookabaugh, "A psychophysically justified bit allocation algorithm
for subband image coding systems," Proceedings ICASSP '89 , Glasgow,
Scotland, May 1989.
E. A. Riskin, T. Lookabaugh, P. A. Chou, and R. M. Gray, "Variable rate vector
quantization for medical image compression with applications to progressive
transmission," Medical Imaging III , Newport Beach, CA, January 1989.
M. Longo, T. Lookabaugh, and R. M. Gray, "Quantization of correlated observations for
decentralized hypothesis testing," IEEE International Symposium on Information
Theory, Kobe, Japan, June 1988.
P. A. Chou, T. Lookabaugh, and R. M. Gray, "Pruned tree-structured source coding,"
IEEE International Symposium on Information Theory, Kobe, Japan, June 1988.
P. A. Chou, T. Lookabaugh, and R. M. Gray, "Entropy-constrained vector quantization,"
IEEE International Symposium on Information Theory , Kobe, Japan, June 1988.
T. Lookabaugh, P. A. Chou, and R. M. Gray, "Pruned tree-structured vector
quantization," Third Annual Cornell Summer Workshop on Systems, Control, and
Communications , Ithaca, NY, July, 1987.
R. M. Gray, S. Boyd, and T. Lookabaugh, "Low rate distributed quantization of noisy
observations," Proceedings of the Allerton Conference on Communication, Control,
and Computing , Monticello, IL, October, 1985.
B. A. Auld, J. Kenney, and T. Lookabaugh, "Electromagnetic sensor arrays--theoretical
studies," in Proceedings of the Annual Review of Progress in Quantitative
Nondestructive Evaluation , Williamsburg, VA, June 1985
Working Papers, Presentations, and Reports
Sicker, Douglas and Lookabaugh, Tom, "A Model for Emergency Service of VoIP
Through Certification and Labeling" (October 2004). NET Institute Working Paper
No. 04-19. http://papers.ssrn.com/sol3/papers.cfm?abstract_id=621724
T. Lookabaugh, "Innovation by Acquisition," Telecommunications Research Group at the
University of Colorado at Boulder Working Paper, May, 2002 .
M. Jackson, T. Lookabaugh, S. Savage, D. Sicker, and D. Waldman, "Broadband
Demand Study Final Report," at http://www.cisco.com/news , April 2003.
T. Lookabaugh, "Broadband Demand," presented at Broadband Summit 2, jointly
sponsored by the National Exchange Carriers Association and the National
Association of Regulatory Utilities Commissioners, Arlington, VA, April, 2003.
MEMBERSHIPS
Academy of Management
Association for Computing Machinery
American Society for Engineering Management
American Society for Engineering Education
Blue Key International Honor Society
Institute of Electrical and Electronic Engineers (Senior Member)
International Association for the Management of Technology
Tau Beta Pi (Engineering Honor Society)
Sigma Pi Sigma (Physics Honor Society)
PATENTS
U S Patents 6,002,687 and 5,835,493, MPEG transport stream remultiplexer
U S Patent 5,828,414, Reduction of timing jitter in audio-video transport streams
PERSONAL INFORMATION
Age: 43
Marital Status:
Married
Children:
Daughter (12) and Son (9)
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